Cities are a physical manifestation of continuous processes of human interaction and of the weaving and knitting of social relations unfolding through space and stratifying through time. Cities are inherently “hard” to understand; their interlacing facets and tangled assemblages render them difficult to frame [1]}, [2]}, [3]}. In particular, the nexus of human mobility patterns, transport planning choices and urban policies pose great difficulties for scientific modelling. It presents, in fact, what Rittel et al. [4]} call a “wicked problem”, that is, a problem whose social nature and lack of objective truth makes inherently hard to tackle with traditional analytic tools.
